But if it looked anything like the Renesmee doll (nicknamed "Chuckesmee") that was eventually cut from Breaking Dawn (the filmmakers opted to use CGI), it's probably for the best. Because this doll is horrifying.

In a new behind-the-scene featurette from Twilight Forever: The Complete Saga (a 12-disc DVD collectors set out today) producer Wyck Godfrey calls Chuckesmee "one of the most grotesque animatronic babies ever to not be seen on film."

"I understand the theory behind it, to have this creature that does all the hand movements and stuff," Nikki Reed recalls. "I'm holding a 60-pound mechanical doll and me and the doll have to move our bodies at the same time. It's really difficult for me."

Godfrey continues, "You're trying to create something that's otherworldly with Renesmee, that is kind of preternaturally intelligent, yet still look like a baby. But actually look like a little bit more mature baby."

But he concludes, "The second you're holding it up, you realize it's never going to work"